Talking-machine.



C. P' CARTER.

TALKING-MACHINE APPLICATION FILED MAR. 1, 1909.

1,047,497. I Patented Dec. 17, 1912.

wmvsssrs: lwsmjon To all whom it may Eoncern:

. as the grooves fully understood, reference is made to the 5O phonograph reproducer provided withand for tracking the 200 thread record grooves,

diaphragm,

.Upon moving the holder through an. angle iniirrnn sagas m W I Q MESNE ASSIGNMENTS, NEW JERSEY, A COB- r. cAnrna, or Kmes'roiv, nnw roan, assrenon, BY or wnsr cannon,

CHARLES TO THOMAS A. EDISON, INCORPORATED, POR-ATION OF NEW JERSEY.

T ALKIN Cir-MACHINE.

Patented Dec. H, 1912.

Application filed March 1, 1909. Serial .No. l80,958.

1&41497. Specification of Letters fatent.

enlarged vertical section through the stylus lever, the stylus being shown in side elevation. F ig. 4: is abottom plan same, and Fig. 5 is an end Be it. known that I, CHAnLEs P. CARTER, a-citizen of the United States, and a resident of Kingston, in the county of Ulster and State of New York, have invented certain new and useful Improvements in Talk-. ing-Machines, of which the following is a description.

My invention relates to improvements in the sound reproducing mechanism of talking machines, and particularly to the stylus and mounting therefor. I

It consists broadly in a single stylus view of the,

ame. I

In all 0t the views,-the same reference characters will be used to. denote corresponding parts. i

box body 1 of the usual fogm and adianer. The floating weight?) ispivo'ted at i. to the body of the re'producer, .as shown, or

adapted to track two different kinds of in any desired and usual manner. Stylus record grooves, as for example, record lever 5 18 pivotally secured a 6 to. lugs *7 grooves having 10f), threads per inch and depending from floating weight 3'. One end stylus holder 9 '1s rotatably mounted within record grooves having 200 threads per inch, upon the so-called two-minute and. four-minute cylindrical sound records. This is accomplished by forming the stylus of different contours in planes at right a'in gles to eachother, so that the stylus as viewed in one direct-ion is narrower than when viewed in the direction at right angles thereto. A cross 'section of the stylus in one direction is of suitable size and form tion 10 of lever 5, stylus-11 being secured centrally within holder 9 and extending below the same. A lever 12 is secured to or formed integral with holder 9. Preferably, lever 12 is mounted within a recess in the lower surface of enlarged portion 10 of lever 5, so that the lower face of lever 12 is flush with the lower surface of lever 5. Shoulders 13, 13 are formed upon lever 12- as shown, to abut against the ends of-the recess in lever 5 in' which member 12 is seated to limit the rotation of tylus-holder 9in each direction, shoulders 13, 13 being preferably so placed as to limit the rotation of the stylus holder toone of approximately an angle of 90 degrees.

tylus 11 may be such as sapphire, .and is secured as by cement within the holder 9. The stylus when viewed in one direction presents a comparatively broad tracking surface, as in Fig.= 3i, and when viewed-at right angles thereto, the stylus presents a comparatively narrow tracking surface, as shown in Fig. 5, which is a view of thestylus at rightangles to the face thereof shown in Fig. 3. The stylus shown in 'Figs. 3 and 5 is in position for tracking a 200. thread record groove, and if handle 12 be turned through an angle of 90 degrees, the broad face of the stylus shown in Fig. 3 will be moved into the position at for example, and its cross section in the other direction is of suitable size andform for tracking a record groove of different size and shape, as for example a 100 thread record groove. The stylus is'mounted by any suitable means, which can be shifted through an angle preferably of 9% degrees, to permit the stylus to be used in a single r'eproducer comprising preferably a single a single fiating weight, and a stylus lever-upon one end of which is the stylus. This upon the lever.

single mounted a holder for holder is rotatably mounted of 90 degrees, the stylus willbe rotated to present a contour suitable for engaging a record groove having a-diiierent number of threads per inch from the record'groove with which thestylus was adapted to coact before the rotation. Q 5

In order that the invention may be more accompanying drawings of wh1ch- Figure 1 is a. central vertical section of a embodying my invention. tom plan view of the same.

Fig. 2 is a bot- Fig. 3 is an view of the The reproducer shown comprisessa sound.

phragm 2 secured therein in theusualmanto link 81in any an opening formed in the enlarged endpor of any suitable material,

' track a 100 thread record groove' The right angles thereto shown in Fig. 5, to

stylus 11 may conveniently be shaped by first grinding to the shape shown in Fig. 3, and then grinding ofi? the'same' on opposite sides to form the narrow point shown in Fig. 5, the sapphire then being highly polished. After stylus holder 9 is' positioned within stylus lever 5, it may be peened within the same as shown at 9 to rotatably hold" the same within the stylus lever, or the I stylus holder 9,may be rotatably mounted within the stylus lever in any other desired manner.

I prefer to use an additional adjustable weight mounted upon floating weight 3 as showmat 14. Floating weight 3 is preferably provided-with two curved arms extending forwardly and downwardly fromthe forward 'end thereof, as shown, upon which is mounted weight 14', which is pro vided with straight passages 16 there- 'through by which the same is mounted upon curved rods 15. Weight 14 may be shifted forward or back upon members 16 to create greater or less pressure upon stylus 11, as

plane at an angle thereto, and a mounting for said stylus rotatable through said angle to enable the stylus to engage record grooves of different size or shape. I

Copies of this patent may be obtained for five cents Leaeh, by addressing the Washington, D. G.

2. A phonograph reproducer comprising a stylus lever, a stylus holder having .an an- .gular adjustment with respect to said lever,

and a stylus carried by said holder and having .difi'erent contours in planesat an angle to each other to enable it to engage record stylus lever pivoted-to said floating weight, .a stylus holder mounted upon said lever and having an angular adjustment with respect thereto, and a stylus carried by said holder and having different; contours in planes at an angle to each other to enable it to engage record grooves of difierentsize or shape.

' 4. A phonograph reproducer comprisinga stylus lever, a stylus holder carried by said lever and angularly adjustable with refer.- ence to said lever, a' stylus fixedin said holder having operativerecord engaging surfaces having different contours in planes at an angle to each other, means for ad'justing said holder angularly to position the one 'or the other of said surfaces inoperative position, and means for stopping said holder in its diiferent operative positions.

5. In a device of the class described, the

which in' one plane is substantially narrower than in a plane at an angle thereto, and a mountingfor said stylus permitting rotation of the stylus through an angle to enable the stylus to engage record grooves of different size or shape. 7

' CHARLES .P. CARTER.

Witnesses:

RACHEL-S. CARTER, I-IABBIET V. CARTER.

Gommissioner of Batents,

combination of a stylus, the cross-section 'of 

